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Cho, Yoon-Kyoung
FRUITS Lab.
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dc.citation.endPage 7 -
dc.citation.startPage 1 -
dc.citation.title SCIENTIFIC REPORTS -
dc.citation.volume 3 -
dc.contributor.author Xu, Wang -
dc.contributor.author Kim, Tae-Hyeong -
dc.contributor.author Zhai, Duanting -
dc.contributor.author Er, Jun Cheng -
dc.contributor.author Zhang, Liyun -
dc.contributor.author Kale, Anup Atul -
dc.contributor.author Agrawalla, Bikram Keshari -
dc.contributor.author Cho, Yoon-Kyoung -
dc.contributor.author Chang, Young-Tae -
dc.date.accessioned 2023-12-22T03:42:26Z -
dc.date.available 2023-12-22T03:42:26Z -
dc.date.created 2013-08-27 -
dc.date.issued 2013-07 -
dc.description.abstract Caffeine has attracted abundant attention due to its extensive existence in beverages and medicines. However, to detect it sensitively and conveniently remains a challenge, especially in resource-limited regions. Here we report a novel aqueous phase fluorescent caffeine sensor named Caffeine Orange which exhibits 250-fold fluorescence enhancement upon caffeine activation and high selectivity. Nuclear magnetic resonance spectroscopy and Fourier transform infrared spectroscopy indicate that π-stacking and hydrogen-bonding contribute to their interactions while dynamic light scattering and transmission electron microscopy experiments demonstrate the change of Caffeine Orange ambient environment induces its fluorescence emission. To utilize this probe in real life, we developed a non-toxic caffeine detection kit and tested it for caffeine quantification in various beverages. Naked-eye sensing of various caffeine concentrations was possible based on color changes upon irradiation with a laser pointer. Lastly, we performed the whole system on a microfluidic device to make caffeine detection quick, sensitive and automated. -
dc.identifier.bibliographicCitation SCIENTIFIC REPORTS, v.3, pp.1 - 7 -
dc.identifier.doi 10.1038/srep02255 -
dc.identifier.issn 2045-2322 -
dc.identifier.scopusid 2-s2.0-84880891415 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/2805 -
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84880891415 -
dc.identifier.wosid 000322107200001 -
dc.language 영어 -
dc.publisher NATURE PUBLISHING GROUP -
dc.title Make Caffeine Visible: a Fluorescent Caffeine "Traffic Light" Detector -
dc.type Article -
dc.description.isOpenAccess TRUE -
dc.relation.journalWebOfScienceCategory Multidisciplinary Sciences -
dc.relation.journalResearchArea Science & Technology - Other Topics -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordPlus INFRARED-SPECTRUM -
dc.subject.keywordPlus BODIPY LIBRARY -
dc.subject.keywordPlus IMAGING PROBE -
dc.subject.keywordPlus BEVERAGES -
dc.subject.keywordPlus RECOGNITION -
dc.subject.keywordPlus RISK -
dc.subject.keywordPlus ADOLESCENTS -
dc.subject.keywordPlus CONSUMPTION -
dc.subject.keywordPlus NANOPROBES -
dc.subject.keywordPlus CATECHINS -

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